console.write("输入一个加数");
int a=std.toInt(console.read());
console.write("再输入一个加数");
int b=std.toInt(console.read());
console.write("加法结果:"+(a+b)+"\n");
console.write("减法结果:"+(a-b)+"\n");
console.write("乘法结果:"+(a*b)+"\n");
console.write("除法结果:"+(a/b)+"\n");
//console.write("程序结束，按任意键继续...");
//console.readKey();